Measure image quality NC

Hello, I have two images (i and iw) and i want to measure the similarity and dissimailarity between them there is function it is called Normalized Cross Correlation (NCC) Could any body support me in the matlab code for it

Answer 1

[Image Analyst]

Normalized cross correlation is performed by normxcorr2(). I'm attaching a demo. As far as I know this is not commonly used to asses image quality. PSNR and SSIM are more commonly used. I'm attaching a PSNR demo. There are functions for them in recent versions of the Image Processing Toolbox.

[Image Analyst]

You'll notice that my naromxcorr2 demo works with a colored image.

There is now a built in psnr() function. Use that. Use imsplit() if you need to separate the image into individual color channels.